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WO2019157750A1 - Procédé et dispositif de surveillance de liaison radio (rlm) - Google Patents

Procédé et dispositif de surveillance de liaison radio (rlm) Download PDF

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Publication number
WO2019157750A1
WO2019157750A1 PCT/CN2018/076894 CN2018076894W WO2019157750A1 WO 2019157750 A1 WO2019157750 A1 WO 2019157750A1 CN 2018076894 W CN2018076894 W CN 2018076894W WO 2019157750 A1 WO2019157750 A1 WO 2019157750A1
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WIPO (PCT)
Prior art keywords
reference signal
terminal device
reference signals
target
measurement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/076894
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English (en)
Chinese (zh)
Inventor
史志华
陈文洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN201880003067.7A priority Critical patent/CN109644361B/zh
Priority to PCT/CN2018/076894 priority patent/WO2019157750A1/fr
Publication of WO2019157750A1 publication Critical patent/WO2019157750A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • Embodiments of the present application relate to the field of communications, and more particularly, to a method and apparatus for monitoring RLM by a wireless link.
  • BWP BandWidth Part
  • Multiple BWPs can be configured on the terminal device, and only one BWP is activated at the same time.
  • the terminal device is only on the activated BWP.
  • the radio link monitoring (RLM) measurement is performed.
  • the terminal device can perform RLM measurement on the radio link monitoring reference signal (RLM-RS) on the BWP to determine the link status. Then, report the link status to the network device, for example, In Synchronization (IS) or Out Of Synchronization (OOS).
  • IS In Synchronization
  • OOS Out Of Synchronization
  • the RLM-RS configuration parameters on multiple BWPs such as the period and time profile, may be different.
  • how to perform RLM measurement is an urgent problem to be solved.
  • the embodiment of the present application provides a method and a device for monitoring RLM measurement of a radio link, which can perform RLM measurement according to a reference signal that satisfies a QCL relationship on multiple BWPs.
  • a method for monitoring RLM measurements by a wireless link including:
  • the terminal device receives a plurality of reference signals having a first quasi co-located QCL relationship on the plurality of bandwidth portions BWP; the terminal device determines a target reference signal for RLM measurement among the plurality of reference signals; the terminal device is based on The target reference signal is subjected to RLM measurement.
  • the reference signal may be a Demodulation Reference Signal (DMRS) DMRS for demodulating a Physical Broadcast Channel (PBCH).
  • DMRS Demodulation Reference Signal
  • PBCH Physical Broadcast Channel
  • CSI-RS channel state information-reference signal
  • the synchronization signal block or the synchronization signal, or the synchronization channel, or other downlink signals, which is not limited in this embodiment of the present application.
  • the reference signal in the target reference signal is from the same transmit beam.
  • the reference signal in the target reference signal may also be from the same antenna port, that is, the reference signal from the same beam or port may be considered as a reference signal satisfying the QCL.
  • the terminal device determines, in the multiple reference signals, a target reference signal for RLM measurement, including:
  • the terminal device determines one or more reference signals of the plurality of reference signals as the target reference signal.
  • the terminal device determines one or more reference signals of the multiple reference signals as the target reference signal, including:
  • the terminal device determines, in the plurality of reference signals, a reference signal as the target reference signal according to a period of the reference signal.
  • the one reference signal is a reference signal with the shortest period among the plurality of reference signals.
  • the terminal device determines one or more reference signals of the multiple reference signals as the target reference signal, including:
  • the terminal device determines that a Kth reference signal of the plurality of reference signals is the target reference signal, where the K is a positive integer.
  • the K is predefined or determined by the terminal device.
  • the terminal device determines one or more reference signals of the multiple reference signals as the target reference signal, including:
  • the terminal device determines that all of the plurality of reference signals are determined as the target reference signal.
  • the terminal device performs RLM measurement based on the target reference signal, including:
  • the terminal device sequentially performs RLM measurement on the plurality of reference signals starting from the first received reference signal.
  • the terminal device performs RLM measurement on the multiple reference signals in sequence, starting from the first received reference signal, including:
  • the terminal device stops performing RLM measurement, and reports IS to the network device, where L is a positive integer;
  • the terminal device If the measurement result of the Lth received reference signal is smaller than the asynchronous state OOS block error rate BLER threshold, the terminal device performs RLM measurement on the L+1th received reference signal.
  • the end condition for performing RLM measurement on the target reference signal in a set of reference signals satisfying the QCL relationship is that the measurement result of a certain reference signal satisfies the first condition, or the measurement result of all the reference signals in the first QCL group Both meet the second condition.
  • the terminal device may stop measuring the target reference signal in the subsequent QCL group, and report the IS to the network device.
  • the terminal device may continue to perform RLM measurement on the target reference signals in other unmeasured QCL groups, when all QCL groups
  • the terminal device may report the OOS to the network device, and if the measurement result of the target reference signal of the QCL group in the plurality of QCL groups satisfies the first condition, the The terminal device can determine to report the IS to the network device.
  • the terminal device may also provide the terminal device device IS when the measurement result of the target reference signal of the at least two QCL packets meets the first condition, or may also be When the measurement result of the target reference signal of all the QCL packets meets the first condition, the IS and the like are reported to the terminal device, which is not limited in this embodiment of the present application.
  • an apparatus for wireless link monitoring RLM measurement configured to perform the method of any of the first aspect or the first aspect of the first aspect.
  • the apparatus comprises means configured to perform the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • an apparatus for wireless link monitoring RLM measurement comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is configured to store instructions configured to execute the memory stored instructions configured to perform the method of any of the first aspect or the first aspect of the first aspect.
  • a computer storage medium configured to store computer software instructions for performing the method of any of the first aspect or any of the possible implementations of the first aspect, comprising a configuration configured to perform the above aspects program.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any of the above-described first aspect or any of the alternative implementations of the first aspect.
  • FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied.
  • FIG. 2 is a schematic flowchart of a method for monitoring RLM measurement of a radio link according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an apparatus for monitoring RLM measurement of a radio link according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an apparatus for wireless link monitoring RLM measurement according to another embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UPD Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 100 can be a device that communicates with a terminal device.
  • Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • FIG. 2 is a schematic flowchart of a method 200 for monitoring RLM measurement of a radio link according to an embodiment of the present disclosure.
  • the method 200 may be performed by a terminal device in the communication system 100 shown in FIG. 1, as shown in FIG. Method 200 can include the following:
  • the terminal device receives multiple reference signals having a first quasi-co-located QCL relationship on the plurality of bandwidth portions BWP.
  • the terminal device determines, in the multiple reference signals, a target reference signal used for RLM measurement.
  • the terminal device performs RLM measurement based on the target reference signal.
  • the terminal device may perform RLM measurement based on a set of reference signals that satisfy the QCL relationship on multiple BWPs, which is beneficial to reducing the number of times the terminal device performs RLM measurement, thereby reducing the terminal device. Signaling overhead.
  • the reference signal may be a Demodulation Reference Signal (DMRS) DMRS for demodulating a Physical Broadcast Channel (PBCH).
  • DMRS Demodulation Reference Signal
  • PBCH Physical Broadcast Channel
  • CSI-RS channel state information-reference signal
  • the synchronization signal block or the synchronization signal, or the synchronization channel, or other downlink signals, which is not limited in this embodiment of the present application.
  • the two reference signals may be considered as Quasi-Co-Location (QCL). .
  • the terminal device may receive multiple reference signals that meet the QCL relationship on multiple BWPs, where the multiple reference signals may satisfy the same QCL relationship, or may satisfy different QCL relationships.
  • the multiple reference signals may satisfy the same QCL relationship, or may satisfy different QCL relationships.
  • a part of the plurality of reference signals satisfy a first QCL relationship
  • another part of the plurality of reference signals satisfy a second QCL relationship
  • the plurality of reference signals can satisfy more QCLs.
  • the relationship between the embodiments of the present application is not limited thereto.
  • the plurality of reference signals received on the plurality of BWPs are divided into a plurality of QCL packets according to a satisfied QCL relationship, that is, each QCL group is a set of reference signals that satisfy a certain QCL relationship, for example,
  • the plurality of QCL groups includes a first QCL group and a second QCL group, the first QCL group is a set of reference signals satisfying a first QCL relationship among the plurality of reference signals, and the second QCL group is the plurality of reference signals A set of reference signals that satisfy the second QCL relationship.
  • the terminal device may determine one or more reference signals in the first QCL group as the target reference signal corresponding to the first QCL group, and determine one or more references in the second QCL group.
  • the signal serves as a target reference signal corresponding to the second QCL group.
  • the terminal device may also determine a target reference signal corresponding to the other QCL group, which is not limited in this embodiment of the present application.
  • the plurality of reference signals may include multiple reference signals from the same transmit beam.
  • RS1 and RS2 are from the transmit beam1
  • RS3 and RS4 are from the transmit beam2, so that RS1 and RS2 can be determined to satisfy the QCL relationship.
  • RS3 and RS4 satisfy the QCL relationship, and further, RS1 and RS2 may be determined as the first QCL packet, and the RS3 and RS4 are determined as the second QCL packet. That is, a set of reference signals satisfying the QCL relationship may be reference signals from the same transmit beam.
  • the period of the plurality of reference signals in the set of reference signals that meet the QCL relationship may be the same or different, which is not limited by the embodiment of the present application.
  • the terminal device may determine a target reference signal used for RLM measurement in the multiple reference signals, and specifically, the terminal device may satisfy each QCL group of the QCL relationship among the multiple reference signals. Determining one or more reference signals as target reference signals for the RLM, further, the terminal device may perform RLM measurement based on the target reference signals in each of the plurality of QCL packets to determine a radio link status, The status of In Synchronization (IS) or Out Of Synchronization (OOS) is reported.
  • IS In Synchronization
  • OOS Out Of Synchronization
  • the measurement by the terminal device of the target reference signal in the plurality of reference signals may be periodic, and the period may be referred to as an RLM measurement period.
  • the RLM measurement period may be referenced according to a period of the reference signal. The information such as the number of signals is determined, and the embodiment of the present application does not limit this.
  • the first QCL group that satisfies the first QCL relationship among the plurality of reference signals is taken as an example to describe how to determine the target reference signal corresponding to the first QCL group.
  • Embodiment 1 All reference signals in the first QCL group may be used as target reference signals corresponding to the first QCL group.
  • the terminal device may perform RLM measurement on all reference signals in the first QCL group, for example, the terminal device may start from the first received reference signal in the first QCL group, and sequentially The reference signal in a QCL group performs RLM measurement.
  • the measurement result of a reference signal satisfies the first condition, the RLM measurement of the subsequent reference signal is stopped, and the IS is reported to the network device.
  • the measurement result of the reference signal satisfies the first condition
  • the measurement result of the reference signal may be greater than the block error rate (BLER) threshold of the IS, or may be used for determining the link.
  • BLER block error rate
  • the quality of the judgment condition is not limited in the embodiment of the present application.
  • the terminal device continues to perform RLM measurement on the other reference signals in the first QCL group until the traversal All reference signals, or if the measurement of a certain reference signal satisfies the first condition, then the RLM measurement of the subsequent reference signal is stopped.
  • the measurement result of the reference signal satisfies the second condition
  • the measurement result of the reference signal may be smaller than the OSS BLER threshold, or may be used for determining the condition that the link quality is poor. The embodiment does not limit this.
  • the end condition of performing RLM measurement on the target reference signal corresponding to the first QCL group is that the measurement result of a certain reference signal satisfies the first condition, or is in the first QCL group.
  • the measurement results of all reference signals satisfy the second condition.
  • the specific reference signal in the first QCL group may be used as the target reference signal corresponding to the first QCL group.
  • the specific reference signal may be the Kth reference signal in the first QCL group, or may be a reference signal that satisfies other conditions, which is not limited in this embodiment of the present application.
  • the K may be pre-defined, or may be determined by the terminal device, which is not limited in this embodiment of the present application.
  • the terminal device can perform RLM measurement on the specific reference signal in the first QCL group.
  • the terminal device may determine to stop processing the target reference signal in the other QCL group, report the IS to the network device, or, if the specific The measurement result of the reference signal satisfies the aforementioned second condition, and the terminal device can continue to perform RLM measurement on the target reference signal in other QCL packets.
  • Embodiment 3 The terminal device may also determine a target reference signal in the first QCL packet according to a period of the reference signal.
  • the terminal device may determine that the reference signal with the shortest period in the first QCL packet is the target reference signal, or may be a reference signal whose period meets other conditions, which is not limited in this embodiment of the present application.
  • the terminal device may perform the RLM measurement on the target reference signal determined in the first QCL group.
  • the terminal device may perform the RLM measurement on the target reference signal determined in the first QCL group.
  • the measurement result of the target reference signal in the first QCL packet can be obtained. Further, the terminal device may determine whether to continue to perform RLM measurement on the target reference signal in the other QCL packet according to the measurement result of the target reference signal in the first QCL packet.
  • the terminal device may stop measuring the target reference signal in the subsequent QCL group to the network device. Reported to IS.
  • the terminal device may continue to perform RLM measurement on the target reference signals in other unmeasured QCL groups, when all QCL groups
  • the terminal device may report the OOS to the network device, and if the measurement result of the target reference signal of the QCL group in the plurality of QCL groups satisfies the first condition, the The terminal device can determine to report the IS to the network device.
  • the terminal device may also provide the terminal device device IS when the measurement result of the target reference signal of the at least two QCL packets meets the first condition, or may also be When the measurement result of the target reference signal of all the QCL packets meets the first condition, the IS and the like are reported to the terminal device, which is not limited in this embodiment of the present application.
  • FIG. 3 shows a schematic block diagram of an apparatus 300 for wireless link monitoring RLM measurements in accordance with an embodiment of the present application.
  • the device 300 includes:
  • the communication module 310 is configured to receive a plurality of reference signals having a first quasi-co-located QCL relationship on the plurality of bandwidth portions BWP;
  • a determining module 320 configured to determine a target reference signal for RLM measurement among the plurality of reference signals
  • the measurement module 330 is configured to perform an RLM measurement based on the target reference signal.
  • the reference signals in the target reference signal are from the same transmit beam.
  • the determining module 320 is specifically configured to:
  • One or more of the plurality of reference signals are determined as the target reference signal.
  • the determining module 320 is specifically configured to:
  • the one reference signal is a reference signal having the shortest period among the plurality of reference signals.
  • the determining module 320 is specifically configured to:
  • the K is predefined or determined by the terminal device.
  • the determining module 320 is specifically configured to:
  • the measurement module is specifically configured to:
  • the terminal device sequentially performs RLM measurement on the plurality of reference signals starting from the first received reference signal.
  • the measurement module is specifically configured to:
  • the RLM measurement is stopped, and the IS is reported to the network device, where L is a positive integer;
  • the RLM measurement is performed on the L+1th received reference signal.
  • the apparatus 300 for radio link monitoring RLM measurement may correspond to the terminal apparatus in the method embodiment of the present application, and the above and other operations and/or functions of the respective units in the apparatus 300 are respectively implemented.
  • the corresponding process of the terminal device in the method 200 shown in FIG. 2 is not described here for brevity.
  • the embodiment of the present application further provides an apparatus 400 for wireless link monitoring RLM measurement, which may be the apparatus 300 in FIG. 3, which can be used to perform the method in FIG. 200 corresponds to the content of the terminal device.
  • the device 400 includes an input interface 410, an output interface 420, a processor 430, and a memory 440, and the input interface 410, the output interface 420, the processor 430, and the memory 440 can be connected by a bus system.
  • the memory 440 is configured to store programs, instructions or code.
  • the processor 430 is configured to execute a program, instruction or code in the memory 440 to control the input interface 410 to receive signals, control the output interface 420 to transmit signals, and perform operations in the foregoing method embodiments.
  • the processor 430 may be a central processing unit (“CPU"), and the processor 430 may also be other general-purpose processors, digital signal processors ( DSP), application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 440 can include read only memory and random access memory and provides instructions and data to the processor 430. A portion of the memory 440 may also include a non-volatile random access memory. For example, the memory 440 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 430 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 440, and the processor 430 reads the information in the memory 440 and completes the contents of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the determining module 320 and the measuring module 320 included in the device 300 in FIG. 3 may be implemented by the processor 430 of FIG. 4, and the communication module 310 included in the device 300 of FIG. 3 may use the input of FIG. Interface 410 and the output interface 420 are implemented.
  • the embodiment of the present application further provides a computer readable storage medium storing one or more programs, the one or more programs including instructions, when the portable electronic device is included in a plurality of applications When executed, the portable electronic device can be caused to perform the method of the embodiment shown in FIG. 2.
  • the embodiment of the present application also proposes a computer program comprising instructions which, when executed by a computer, cause the computer to execute the corresponding flow of the method of the embodiment shown in FIG. 2.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

La présente invention concerne un procédé et un dispositif de mesure de surveillance de liaison radio. Selon le procédé, un dispositif terminal reçoit une pluralité de signaux de référence ayant une première relation de quasi colocation (QCL) sur une pluralité de parties de bande passante (BWP) ; le dispositif terminal détermine un signal de référence cible pour une mesure de RLM parmi la pluralité de signaux de référence ; le dispositif terminal effectue une mesure de RLM sur la base du signal de référence cible.
PCT/CN2018/076894 2018-02-14 2018-02-14 Procédé et dispositif de surveillance de liaison radio (rlm) Ceased WO2019157750A1 (fr)

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CN201880003067.7A CN109644361B (zh) 2018-02-14 2018-02-14 无线链路监测rlm的方法和设备
PCT/CN2018/076894 WO2019157750A1 (fr) 2018-02-14 2018-02-14 Procédé et dispositif de surveillance de liaison radio (rlm)

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